Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2015 Buick Enclave ConvenienceFACTORY OEM SERVICE PROCEDURE
Circuit/System Testing
- Ignition OFF, disconnect the X1 harness connector at the multifunction switch.
- Ignition OFF, test for less than 20 Ξ© between the low reference circuit terminal 7 and ground.
- If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit test normal, replace the BCM.
- Ignition ON, verify the scan tool Windshield Wiper Switch parameter is Off.
- If not the specified value, test the signal circuit terminal 4 (without N38) or terminal 10 (with N38) for a short to ground. If the circuit tests normal, replace the BCM.
- Install a 3 A fused jumper wire between the signal circuit terminal 4 (without N38) or terminal 10 (with N38) and ground. Verify the scan tool Windshield Wiper Switch parameter is Switch Fault.
- If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
- If all circuits test normal, test or replace the multifunction switch.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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